Asynchronous Serial Data Transmission Registers
Name Start Address Type Access
ASYNCH_NUM_BYTES_TX 5440 UINT16 R/W
ASYNCH_DATA_TX 5490 UINT16 W
ASYNCH_TX_GO 5450 UINT16 W
ASYNCH_NUM_BYTES_TX
- Address: 5440
The number of bytes to be transmitted after writing to GO. Max is 256.
  • Data type: UINT16  (type index = 0)
  • Readable and writable
  • Default value: 0
  • This register uses system RAM. The maximum RAM is 64KB. For more information, see 4.4 RAM
ASYNCH_DATA_TX
- Address: 5490
Write data to be transmitted here. This register is a buffer.
  • Data type: UINT16  (type index = 0)
  • Write-only
  • Default value: 0
  • This register is a Buffer Register
ASYNCH_TX_GO
- Address: 5450
Write a 1 to this register to initiate a transmission.
  • Data type: UINT16  (type index = 0)
  • Write-only
  • Default value: 0